/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.linkis.engineconn.computation.executor.execute

import org.apache.linkis.engineconn.computation.executor.entity.EngineConnTask
import org.apache.linkis.engineconn.executor.entity.ConcurrentExecutor
import org.apache.linkis.manager.common.entity.enumeration.NodeStatus
import org.apache.linkis.scheduler.executer.ExecuteResponse

abstract class ConcurrentComputationExecutor(override val outputPrintLimit: Int = 1000)
    extends ComputationExecutor(outputPrintLimit)
    with ConcurrentExecutor {

  override def execute(engineConnTask: EngineConnTask): ExecuteResponse = {
    if (isBusy) {
      logger.error(
        s"Executor is busy but still got new task ! Running task num : ${getRunningTask}"
      )
    }
    if (getRunningTask >= getConcurrentLimit) synchronized {
      if (getRunningTask >= getConcurrentLimit && NodeStatus.isIdle(getStatus)) {
        logger.info(
          s"running task($getRunningTask) > concurrent limit $getConcurrentLimit, now to mark engine to busy "
        )
        transition(NodeStatus.Busy)
      }
    }
    logger.info(s"engineConnTask(${engineConnTask.getTaskId}) running task is ($getRunningTask) ")
    val response = super.execute(engineConnTask)
    if (getStatus == NodeStatus.Busy && getConcurrentLimit > getRunningTask) synchronized {
      if (getStatus == NodeStatus.Busy && getConcurrentLimit > getRunningTask) {
        logger.info(
          s"running task($getRunningTask) < concurrent limit $getConcurrentLimit, now to mark engine to Unlock "
        )
        transition(NodeStatus.Unlock)
      }
    }
    response
  }

  protected override def ensureOp[A](f: => A): A = f

  override def afterExecute(
      engineConnTask: EngineConnTask,
      executeResponse: ExecuteResponse
  ): Unit = {}

}
